As others have said, you don't NEED a conical bullet to take deer with a .45 cal. rifle. A patched round ball has just as much killing power as a conical. But, if it is a conical that you want, the Lee R.E.A.L. bullet mold will give you an excellent conical bullet. If I were you, I would just work up a good accurate load using a patched round ball and go harvest some deer.
A good starting point would, in my estimation, be a .440 round ball, some washed 100% cotton drill that measures about .015 for your patches. For a lube, I think any of the natural oils such as olive oil, Jojoba oil, Ballistol, etc will work quite well. Use only a
small amount of lube on your patches. You want them to feel almost dry. They give better accuracy that way. For your starting powder charge, I recommend starting with about 65 grains of 3f black powder and working up in 5 grains increments until you find the most accurate charge. Once you have worked this out and can keep all of your shots on a paper plate at 100 yards, you are good to go for hunting deer. Put one of those balls in a deer's boiler room and he is down for the count. I don't care what anyone may tell you or what you may have read, a muzzlelaoding rifle with open sights is good out to a maximum of 100 yards. After that, the ball has lost too much velocity to guarantee a clean kill and open sights at ranges greater than 100 yards are just not that accurate. People may tell of killing deer at ranges much greater than 100 yards with a muzzleloader but I say :bull:. They may have just been awfully lucky, they may not be able to accurately judge distance or they may just be full of :bull: An ethical hunter who hunts with a muzzleloader keeps his shots under 100 yards. If you want to shoot farther than that, use a modern cartridge gun with a nice 3 to 9 scope.
BTW, go to
www.blackpowderrifleaccuracy.com and order a copy of Dutch's muzzleloading accuracy systems. Carefully follow what he tells you and you will be amazed at what you can do with that rifle of yours. It is only $20 and is a fantastic investment in how to make your rifle cut those Xs. Not only do you get a copy of his accuracy system but he will send you his email address and his actual phone number so you can email or call him to work out any accuracy problems that you may encounter. Such a deal!!
Whatever you decide, good luck and good hunting. :hatsoff: